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Pinpoint Test A - Wipers Inoperative

  1. Disconnect wiper motor connector. Turn wiper switch to high speed. Turn ignition on. Measure voltage between ground and terminal No. 5 (White/Green wire) at wiper motor connector. See Fig 1 . If battery voltage is present, go to next step. If battery voltage is not present, go to step 3).
  2. Test wiper motor. See WIPER MOTOR  under COMPONENT TESTING. Replace wiper motor as necessary and retest system. If motor tests okay, check wiper linkage for binding or damage and check ground system connections. Repair or replace as necessary.
  3. Disconnect wiper switch connector. Measure resistance of White/Green wire between terminals No. 1 at wiper switch connector and No. 5 at wiper motor connector. See Fig 1 and Fig 2 . If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open in White/Green wire.
  4. Ensure wiper switch connector is disconnected. Turn ignition on. Measure voltage between ground and terminal No. 8 (Purple/Orange wire) at wiper switch connector. If battery voltage is not present, go to next step. If battery voltage is present, replace wiper switch.
  5. Remove circuit breaker (10-amp) from F20 position of instrument panel fuse block. Check circuit breaker continuity. If continuity exists, reinstall circuit breaker and go to next step. If continuity does not exist, replace circuit breaker and retest system.
  6. Disconnect instrument panel fuse block connector "N". Measure resistance of Purple/Orange wire between terminals No. 1 at connector "N" and No. 8 at wiper switch connector. See Fig 2 and Fig 3 . If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open in Purple/Orange wire.
  7. Turn ignition on. Measure voltage between ground and terminal No. 1 (Purple/Orange wire) at instrument panel fuse block connector "N". See Fig 3 . If battery voltage is present, replace wiper switch and retest system. If battery voltage is not present, replace fuse block.
Fig 1: Identifying Wiper Motor Terminals (Contour & Mystique)
G95D13584Courtesy of FORD MOTOR CO.
Fig 2: Wiper Switch Connector Terminal ID (Contour & Mystique)
G95F13586Courtesy of FORD MOTOR CO.
Fig 3: Instrument Panel Fuse Block Connector "N" Terminal ID (Contour & Mystique)
G95B13590Courtesy of FORD MOTOR CO.
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